425/601
Single Street Polish Town

In the town of Sułoszowa, Poland, all the residents live on the single nine-kilometer-long street.

424/601
One of the Largest Swimming Pools in the World

The private resort San Alfonso del Mar in Chile has one of the largest swimming pools in the world. It’s 1,013 meters (3,323 feet) long and contains 250 million liters (66 million gallons) of seawater.

423/601
The Mystifying Waters of Angel Falls

The highest uninterrupted waterfall in the world, Angel Falls in Venezuela, is so tall that by the time the water descends, most of it turns into mist.

422/601
The Real Shape of Rainbows

All rainbows are actually full circles. It’s just that when you see them from the ground, there are no water droplets below your eye level to refract light. You can, however, see the full circle from high altitudes.

421/601
The Coldest Inhabited Town in the World

The Russian town Oymyakon is the coldest inhabited place on Earth with a recorded minimum temperature of -71 ℃ (-96.2 ℉) in 1924. Schools are only closed if the temperature drops below -55 ℃ (-67 ℉).

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Austria’s Park that Turns into a Lake

There is a place in Austria called Grüner See which is a dry park in winter and turns into a 12-meter-deep lake in summer.

419/601
An Average Person’s Walking Distance

An average person will walk 75,000 miles during their lifetime. That’s equivalent to traveling around the world three times.

418/601
Samsung’s Safety Truck

In 2015, Samsung built a Safety Truck that displays the road ahead on a screen on the rear of the truck so drivers behind can safely pass.

417/601
Clean Energy from Termites

Some researchers believe that termites can be used as a possible source of producing clean energy. When they are fed coal, they produce methane and humic matter, which can be used as fuel and organic fertilizers respectively.

416/601
“Air Curtains” Keep Insects Out

The blast of air you feel when you enter a store is to prevent insects and other contaminants from entering. It’s known as an “air door” or “air curtain.”

415/601
Pencils That Aren’t Just for Writing but for Growing

This is a plantable pencil. It is designed to be planted once it becomes too short to use. It contains a seed, and when planted, you can observe it transforming into flowers, herbs, vegetables, and even trees.

414/601
There Are No Mosquitoes or Reptiles in Iceland

Iceland has no mosquitoes, snakes, or any other reptiles or amphibians.

413/601
Ideal Vacation Length

According to a University of Tampere study, eight days is the perfect length for a vacation. Longer than that, the positive feelings start to decrease.

412/601
Spicy Foods and Endorphins

The pain from eating spicy foods releases endorphins and dopamine, which in turn makes the experience euphoric and addictive.

411/601
Aretha Franklin Got Paid Before Concerts

American singer and pianist Aretha Franklin collected her payment in cash on the spot, or she wouldn’t perform. The cash would go into her handbag and the handbag stayed with her security or on stage with her during her performance, always within eyeshot.

410/601
Bad Blood Between Robin Williams and Disney

Robin Williams agreed to be paid $75,000 instead of his usual $8 million for voicing Genie in 1992 Aladdin. His one condition was that his voice not be used for merchandizing and fast food tie-ins to protect his kids from inevitable commercialization. Disney, however, went ahead and did it anyway, and sent a self-portrait of Picasso worth $1 million as apology.

409/601
Most Polluted City in the World

Delhi is the most polluted city in the world. The city’s AQI levels reach up to 500 during winter months and its yearly average AQI is 260, the maximum permissible AQI level is 100. It is estimated that 2.2 million children suffer from irreversible lung damage and compromised immune systems in the city.

408/601
Riyadh’s Architectural Project

The Crown Prince of Saudi Arabia announced a massive cube-shaped skyscraper project called “Mukaab” to be built in Riyadh.

407/601
World’s Largest Waterfall Is Underwater

The world’s largest waterfall is actually underwater. Located in the Denmark Strait, it is over three times taller than Angel Falls.

406/601
The Bad Influence of Toxic Workers

According to a Harvard study, hiring one “superstar toxic worker” is more detrimental to the company’s well-being than hiring less toxic workers, even if they’re comparatively less skilled.

405/601
The Exoneree Who Turned into an Attorney

In 1998, 17-year-old Jarrett Adams was arrested and sentenced to 28 years in prison for a crime he didn’t commit. He studied law by reading books at the prison library, and 10 years later proved his innocence. By 2015, he graduated law school and now helps free others who are falsely convicted.

404/601
Stealing Small Amounts of Food Is Not a Crime in Italy

In 2016, Italy’s Supreme Court of Cassation ruled that stealing small amounts of food to stave off hunger does not constitute a crime.

403/601
A Child Prodigy Student at University of Minnesota

This is Elliott Tanner, the 13-year-old who graduated from the University of Minnesota with a Bachelor of Science degree in physics. He is currently working on his Ph.D. in high-energy, theoretical physics at the university. His parents homeschooled him aft/501er noticing he could already read and do math when he was three years old.

402/601
Trauma of “Tiger Parenting” Develops into Anxiety Disorders

Children who grow up in stressful environments with critical or harsh parents tend to develop various anxiety disorders as adults.

401/601
John Cena Met a Teen Fan with Down Syndrome

When Misha Rohozhyn, a non-verbal, 19-year-old with Down syndrome, had to flee Mariupol, Ukraine, with his mother, she kept his spirits up by telling him they were traveling to meet WWE star John Cena. When Cena read about it, he immediately flew to Amsterdam and met the young fan.